Poo-Gloo Diagram (IMAGE) Wastewater Compliance Systems Caption This illustration shows the inner workings of a Poo-Gloo device used to increase treatment of sewage in municipal waste lagoons. Each Poo-Gloo -- sold under the name Bio-Dome -- includes four nested domes with plastic packing (wagon wheel shapes) between them to provide a large surface area on which sewage-eating bacteria grow. A hose (red) sends bubbles (gray circles) upward through the Poo-Gloo, and the air helps pull wastewater up through the device (blue arrows). A new study shows Poo-Gloos provide a relatively inexpensive alternative to mechanical sewage treatment plans for small to mid-sized towns and cities outgrowing their sewage lagoons. Credit Waste Compliance Systems Inc. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.